…. ARE TRYING TO FIND AN INEXPENSIVE SUBSTITUTE GASOLINE. SCIENCEVI...

4. …. are trying to find an inexpensive substitute gasoline. SCIENCEVI. Chˤn phɵɳng án A, B, C ho˅c D đ˔ đi˒n vào ô tr˨ng (1,25 đi˔m)Nobody knows how many different languages there are in the world. There are about twothousands. Among these languages, English is the most widely (1) … in the world.I have learn English (2) … four years. I find English very interesting. I think that Englishis not easy to learn. It is very (3) …. from Vietnamese language. English grammar is ratherdifficult.Although English is not easy to master, I try hard to learn it well. I spend a lot of time (4)...to the tapes or radio, speaking English with my teachers and friends, reading books, magazinesand newspapers. I write in English, too. I'm not afraid of making mistakes. I think that the bestway to learn a foreign language is to use it (5) …. day.